The Ponaganset River is a river in the U.S. state of Rhode Island. It flows approximately .U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed April 1, 2011 There are three dams along the river's length.Governor's Task Force on Dam Safety and Maintenance – Final Report, January 2001
Course The river's source is Ponaganset Reservoir in Glocester. It then flows roughly southeast through Glocester and Foster, then into Scituate to the Scituate Reservoir. The river used to converge with the Moswansicut River to form the North Branch Pawtuxet River in the area that is now flooded by the reservoir.
Crossings Below is a list of all crossings over the Ponaganset River. The list starts at the headwaters and goes downstream. Glocester George Allen Road Foster Hartford Avenue (RI 101) Winsor Road Pine Tree Road Old Danielson Pike Danielson Pike (U.S. 6) Ram Tail Road Central Pike Scituate Ponaganset Road Plainfield Pike (RI 14)
Tributaries In addition to many unnamed tributaries, the following brooks feed the Ponaganset: Shippee Brook Winsor Brook Dolly Cole Brook
See also List of rivers in Rhode Island Moswansicut River North Branch Pawtuxet River Scituate Reservoir
References